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Mathematics 8 Online
OpenStudy (anonymous):

help?

OpenStudy (theopenstudyowl):

Hello, How can I help you?

OpenStudy (anonymous):

This equation may take time to type. Just saying :)

OpenStudy (theopenstudyowl):

ok, np, I am here to help!

OpenStudy (anonymous):

Simplify \[\sqrt{5}\left( 8+3\sqrt{6} \right)\] A. \[8\sqrt{5}+3\sqrt{30}\] B. \[5\sqrt{10}\] C.130 D. None of the above

OpenStudy (theopenstudyowl):

A.

OpenStudy (anonymous):

Really?

OpenStudy (anonymous):

Are you sure?

OpenStudy (theopenstudyowl):

Yes, let me show my work, one second plz...

OpenStudy (theopenstudyowl):

\[\sqrt{5}(8 + 3\sqrt{6})= 8\sqrt{5} + 3\sqrt{30}\]

OpenStudy (anonymous):

Thank you!!!

OpenStudy (theopenstudyowl):

yah np

OpenStudy (theopenstudyowl):

Happy Studying!

OpenStudy (anonymous):

what about this question? Is the simplified form of \[2\sqrt{3}+3\sqrt{3}\] rational? A. Yes B. No

OpenStudy (anonymous):

@theopenstudyowl ^

OpenStudy (anonymous):

No, the simplified form is \[5\sqrt{3}\]

OpenStudy (anonymous):

is the simplified form of \[2\sqrt{3}\times2\sqrt{6}\] rational? A. Yes B. No

OpenStudy (theopenstudyowl):

no

OpenStudy (anonymous):

i trust you @theopenstudyowl :)

OpenStudy (anonymous):

No again, as the simplified form is \[12\sqrt{2}\]

OpenStudy (anonymous):

like i said i trust you @theopenstudyowl

OpenStudy (anonymous):

simplify \[\sqrt{3}\times \sqrt{21}\] A. \[\sqrt{24}\] B. \[\sqrt{63}\] C. \[3\sqrt{7}\] D. None of the above

OpenStudy (anonymous):

The correct answer is C.

OpenStudy (anonymous):

which statement is true about the product \[\sqrt{2}\left( 5+\sqrt{8} \right)\]? A. It is rational and equal to 7 B. It is rational and equal to 9 C. It is irrational and equal to 4 + \[\sqrt{10}\] D. It is irrational and equal to 4 + 5\[\sqrt{2}\]

OpenStudy (anonymous):

The correct answer is D

OpenStudy (anonymous):

Anything else you want to know?

OpenStudy (anonymous):

which statement is true about the difference \[2\sqrt{7}-\sqrt{28}\] A. It is rational and equal to -2 B. It is rational and equal to 0 C. It is irrational and equal to \[-2\sqrt{7}\] D. It is irrational and equal to \[\sqrt{7}\]

OpenStudy (anonymous):

@damneny ^

OpenStudy (anonymous):

@theopenstudyowl help? ^

OpenStudy (anonymous):

The correct answer is B.

OpenStudy (anonymous):

thx @damneny

OpenStudy (anonymous):

Need anything else?

OpenStudy (anonymous):

If so, then tag me.

OpenStudy (anonymous):

I got 100% because of you and @theopenstudyowl thx :) :)

OpenStudy (theopenstudyowl):

yah np

OpenStudy (theopenstudyowl):

keep working hard

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